Band-perforating apparatus.



H. DREWELL.

BAND PERFORATING APPARATUS.

APPLICATION FILED $32123, 1913.

Patented Aug. 11, 1914.

W N SSES,

THE NORRIS PETERS CO.. PHOTO-LITHO:. WASHINGTON, D. t.

provide that the perforations shall agree HEINRIGH 'DREWELL, 0FCHARLOTTENBURG, GERMANY.

BAND-PERFORATING APPARATUS.

icense.

Specification of Letters Patent.

Patented Aug. 11, 191%..

Application filed. September 23, 1913. Serial No. 791,270.

To all whom it may concern Be it known that I, HEINRIGH DREWELL, asubject of the German Emperor, residing at Charlottenburg, Germany, haveinvented new and useful Improvements in Band- Perforating Apparatus, ofwhich the following is a specification.

My invention relates to apparatus for making perforated bands foroperating automatic typesetting machines, automatic matrix-setting andline-casting machines and the like. 5

A primary object of my invention is to exactly with the text written bythe typewriter connected with the perforatingde vice. Such agreement isof considerable im- 7 portance because without it the text would notfulfil its purpose, e. that of serving as an aid in making corrections.The agreement is, however, rendered difficult owing to certainoccurrences which are unavoidable in the case of rapid working, 6. g.the simultaneous partial depression ofseveral keys, and the like. Inorder to render such mistakes non-injurious I make the selection of thepunches used for. perforating the band dependent on that type-bar of thetypewriter which carries the type corresponding to the perforatedsymbol, by causing the type-bar to select the punch only when inproximity to its printing position. In addition, a very elastic andlight stroke of the key is obtained in this manner. The certainty ofoperation is based, on the one hand, on all the type-bars having to bebrought into an exactly predetermined end position in order to bringabout both the printing of the types and also the selection and actionof the punches andfon the other hand, on a type-bar which does notarrive into this end position causingneither the one nor the otherfunction tobe'performed. Consequently, a keypcan be depressed throughthree-quarters of its stroke, for example, without itsbccomingoperative, whereas both printing and perforation take place without'fail when the key is struck in the ordinary manner withsuflicientforce. The certainty of action is increased owing to the type-baracquiring a certain velocity when it is struck in the ordinary manner,and owing to" its being able by means'of the impetus thereby acquiredtobring about both the printing of thetype and alsothe production of theperforated symbol even should the ters of a particularly finger whichstrikes the key leave the latter too soon, Thus the proper action of theblow on the key depends not only on the extent of the movement which thefinger directly imparts to the key, but also on the energy of thismovement. Consequently, keys which are depressed owing to their beingunintentionally struck when an adjacent key is struck produce neither aprint nor a perforated symbol, because inby far the majority of casessuch keys are struck only lightly and the key or the type-bar does notmove at any high speed" On the other hand, the two type-bars whichoperate simultaneously must necessarily strike together at the samepoint,so that defective operation is recognized without fail in thismanner by the operator and can be rendered non-injurious.

The invention can be employed in combination with typewriters andperforating devices of very various construction. Both typewriterswithout shift-keys and also those comprising the same may be used. Inthe following description it is assumed that a typewriter comprising ashift-key is used, and a mode of changing over to capitalletadvantageous kind in such cases is described.

To these ends the invention consists inthe construction, arrangement andcombination tion of the Underwood system and comon the key-levers 1,entering into slots in thelevers 2. Driving pins 8 on the levers 2 enterinto slots 9 in the type-bars 3 and impart tothese the motion of thekey-levers. The typebars rotate about the curved ward a small distance.

, register band simultaneously with: the printaxle 10 known intheUnderwood mechanism. They carry at their free ends a number of types11, in this case two;

bar is thrown outof its horizontal into a verticalfpo sition andstrikesagainst the platen where it produces an impression.

The mode of operation of the typewritingmechanism is the same as that ofthe wellknown Underwood typewriting mach1ne.

In order to produc'e'a perforatlon 1n the 'ing of the types the motionof the'type-bars is imparted to a device for selecting punches. For thispurpose, the type-bar 3 has a shoulder 18 near its fulcrum. Vhen a.key.12 1s ,,depress'ed and the type-bar 3 is consequently Wends' ofwhich slide'in guides 20 and i "Each of the rods 19 is coniiected withnumberof. levers, in the present .case two,

'moved into its vertical position this shoulder abuts against a rod 19and shifts 1t backbars 3 influences arseparate rod 19, the two '23 .and24, in such manner that the upper ends .ofthe latter must partlc pate 1nthe emotion of the rods 19. A'band is attached to the lower end of eachof these leingl' provided with oval .or longitudinal holes, throughwhich the levers are inserted. :The levers are bent in the holes so thattheyfcan' be laced as close together .as pos- 23; In order that thelevers 23 and 2 1 forming a pair cannot be pushed one beside anotherthey are arranged crosswise in a suitable hole or recess of the rod, 19,as is I shownat 26 in Figs. 1 andi3. The lower ends of the levers 23 and2 1 are guided lat erallyin a comb-like guide 28, and a similar guide 29guides the bands 25 laterally.

I-These bands are themselves under the 1n-; ,fiu ence of springs tendingto pull them rearwardly, the springs being fastened 1n suitable: mannerto a cross-bar 51. The" bands 25 are provided with teeth or lugs 53,

with which theycoact with cross-bars 54 and thereby bring about theselection ofthe "punchesin the'manner described hereinafter. 7 r Each ofthe rods 19 acts on two or more levers 23'and 24, the number thereofdepending'on the number of types provided at the end of each'type-lever.

comprising single shift-key 'mechanisnione is depressed, however, onlyone of the levers should: operate, the other remaining 1nop-. erative. IFor, thispurpose, opposite the type-bar; carries two types and,accordingly, each rod 19 drives two levers.

When a' key 12 fastened to the extreme outermost end of the key-lever 1is struck the type-' Each of the type- The connection offthe levers 23and 24 with the rods 19 and bands 29 is established by both the-rods andthe bands be- 7 The rod 19'drives the rear lever2t by means of theintermediate lever In a machine When a key 5 32 provided'with twoknife-edge like ribs 30 and 31 (-Figs.= 'l aud t)? The shaftcarmiddle"of theflevers j 23iand 24 ri es at'its two ends gears 33- which meshwith 7 shiftin these slots only-verticallyiand'not;

from front to rear, Inthe normal posie; '3

tion. the pins 40 Jare located in the lower.

parts' ofthe slots. WVhen theshift-key 33 is depressed the rack 35islifted, the shaft32' is consequently rotatedandaits gears 33 roll V onthe fixedly mounted rack 1341.

provided; with recessesel'v and consequently remain inoperative whenthesaid key is de pressed. Instead of rocking about the edge a 30 they rockabout the front edge of a bar V V I The shaft .32' is consequentlysimultaneously?lifted.

In the normal position the knife-edge30 of i V the shaft constitutesasupportand fulcrum 'i for the levers 23. In (this position onlylthelevers 23 operate, because the jlevers 2am;

28 at the lowerlend ofi'the lever, so that they move onlya'smalldistance;towardthe front at the point of attachment to the band25, 1 and this displacement. does not suffice.

for operating any meehanism;., The lever 23, on the contrary, is,compelled to' rock about-the edge 30, so that its lower endis l swung agreater dlstance toward the front V and thelband 25 atta chedtoitisupulled. 7'

When the position of the slifaft 32 is changed 1 owing tothedepressionioflt-he .key 38,.the f edge 31 formsthe' fulcrum ofithelevers it being located a position higher than that" previouslyfoccupiedby the'edg'e 3O opposite? the levers; Inthis position the edge 31 isopposite a recess 42 inthe lever 23,, whi l e the lever 24 has no recess"at this. place. 1 Consequently, when a' rjkey; is depressed the Whenthe key l 38 is released theshaft 32 is returned a into its normalposition v by grav-H lever, 23 now remains inoperative, but the" i ilever 24: is rockedg about the edge 31'and pulls with it the band 25connected to it.

ity or by a springattached in" suitable mannor to it or to thei-ack35l.'The'key 33 simultaneously constitutesfthe shift .key. of,

the type writer, by means of which capital lettersand certain charactersare written The perforating device comprises sixteen punches 56 locatedonebes de another, which 5 number may ofcourse belncreasedordimine; i:

ished as desired,,th c punches b eingi longitu- 1 din ally disp]aceablymounted'in a guide' 57- (Fig. In front of the" one end of this" guide isthe matrix 58 having anumber: of; 5 'holes 59Icorresponding to the pmcheslv 1 Be- 7 en -:s 1 de'.:57 and-th matrix 5 1 a:

small gap through which the band 60 to be perforated is drawn. Thegrooves of the guide 57 in which the punches 56 slide are covered overbycovers6l and 62. Between the two covers is a gap in which lugs 63 ofthe punches move. These lugs are for returning the punches after useinto their normal position. Each punch is provided at one end with around, spherical or cylindrical head 64 engaged byan angle lever 65, 66.The arm 66.0f this lever isunder the influence of a spring 67 whichtends to rock it so that the arm 65 is located in the path of a bar 68.This is prevented in y the normal position of the apparatus by aprojection 69 on a bar 1. These bars 54 are mounted with two knife-edgelike pivot pins or fulcrums 72 in recesses in bearings 73 and arerotatable about the lower edges of the fulcrums 72. The covers 74prevent "the fulcrums 72 being lifted out of the bearings 73. The bars54 are under the influence of springs 76 having one end attached to lugs78 on the bars. The other ends of these springs are attached to across-bar 79 attached in suitable manner to the frame of the machine.

The apparatus as described above operates as follows :VVhen a key 12 isdepressed and the type-bar 3 is thrown against the platen,

the lug 18 drives the corresponding rod 19 rearwardly, the two levers 23and 24 connected with the rod being driven. One of these levers rocksabout its lower end, 2'. 6.,

Z-about the point of support against the bar 28, while the other leverrocks about the edge 30 of the change-over shaft 32 or, in event of theshift-key having been operated, the other lever rocks about the edge 31of the same shaft. That lever which looks about the lower point ofsupport of the bar 28 exercises no action on the selection of punches oron other parts of the apparatus. The other lever rocklng about one .ofthe edges of the shaft 32 causes one of the combination bands 25 to bepulled forward. The teeth 53 of this band act on cross-bars 54 which arethereby rocked about the lower edges of the fulcrum 72. Each projection69 of the cross-bars in question is shifted so much that it releasesthearms 66 of the angle levers 65, 66 in operative relation therewith.These angle levers are rocked so far that the free ends of the armsarrive in front of the bar 68. This bar forms a part of a striking framewhich whenever a key is struck is moved forward and backward by means ofcams, whereby the selected levers 65, 66 together with the punches 56pivotally connected to them are driven forward and perforate the paperband 60. The mechanism for driving the cams is described in detail in myAmerican Patents No. 98898 1 dated the 11th day of April, 1911 and No.1001825 dated the 29th day of August, 1911 and therefore need not bedescribed here.

In the above described arrangement for selecting the punches the rod 19which brings about the selection can be driven by the momentum of thetype-bar associated therewith when the key in question receives a short,but suficiently powerful blow. This is of material importance for theproduction of a correct perforated symbol which corresponds to thestruck key. In perforating devices known heretofore which were connectedwith a typewriter, the unintentional partial depression of a key couldproduce an incorrect perforated symbol because there was so much lostmotion between the key and the type-bar, on the one hand, and the keyand the member for selecting the punch, on the other hand, that thetypebar and the member for selecting the punch could operateindependently one of the other when a key was depressed only a little.This is impossible in my arrangement because the member for selectingthe punch cannot be driven otherwise than by the type-bar and is driventhereby only during the last part of its movement. In consequence of thelatter circumstance, when a key is insutficiently depressed and thetype-bar is not moved suflicient-ly neither a perforated symbol isproduced nor is a type printed. On the other hand, it is not necessaryto depress each key specially carefully into its lowest position becausethe swing or impetus of the rapidly moved type-bar sutlices for bothprinting the type and also for driving the punch-selecting member 19.Accordingly, it is not so much the extent of the movement of the key asthe energy of the stroke which is important for the correct action ofthe latter. In this way, one of the most important conditions for rapid,but nevertheless certain and correct working of the machine isfulfilled.

I claim 1. In means for making operating bands for operating automatictype-setting machlnes or automatic matrix-setting and linecastingmachines, the combination with a typewriter comprising a plurality oftype bars adapted to be brought into a printing position, of a pluralityof punches, punchselecting means for selecting one or more of saidpunches, means operatively connected to said punch-selecting means andadapted to be actuated by one of said type-bars when coming intoprinting position and means for actuating said punches when selected bysaid punch-selecting means.

2. In means for making operating hands a for operatlng automatictype-settlng machines or automatic matrix-setting and linecastingmachlnes, the combination of a plurality of type-bars, each adapted tobe thrown into printing position, a plurality of Y tuate saidpunch-driving members when selected by said selecting means;

3. In means for making register bands of the character described, thecombination with a plurality of key-levers, a plurality of type-barsoperatively connected therewith,

a plurality of driving members each adapt ed to be driven by one of saidtype-bars when moving into itsprinting position, and

punch-selecting means comprising a plurality of selecting members, of aplurality of groups of intermediate members, each of said groups beingconnected to one of said driving members and each of said intermediatemembers being adapted to actuate one of said selecting members, andmeans for rendering said intermediate members altera nately operativeand inoperative.

4. In means for making the operating bands of automatic composingmachines, the combination of a plurality of key-levers, a plurality oftype-bars, means operatively connecting said type-bars and said key-le-'vers, a plurality of groups of intermediate members, a plurality ofdriving members each adapted to be driven bv one of said type-bars andto actuate one of said groups of intermediate members, a plurality ofpunches, a plurality of punch-driving members-each connected to one ofsaid punches and adapted to actuate the same, punchdriving means adaptedto drive said punchdriving members, a plurality of selecting memberseach adapted to be actuated by one of said intermediate members and tobring one or more of said punch-driving members into operative relationwith said punch-driving means, and means for rendering the members ofsaid groups of intermediate members alternately operative and iIlOPGIative.

5. In means for making register bands of the character described, thecombination With a plurality of key-levers, a plurality of type-barsoperatively connected therewith, a plurality of driving members eachadapted to be driven by one of said type-bars when moving into itsprinting position, and punch-selecting means comprising a plurality ofselecting members, of a plurality of groups of intermediate members,each of said groups being connected to one of said driving members andeach of said intermediate members being adapted to actuate one of saidselecting members,ra shift key, and means controlled by the shiftkey-for rendering said intermediate members alternately operative andinoperative.

m ets In means for making. the operating bands of automatic composingmachines, the.

eombination of a plurality otkfeyelevers, a plurality. of type-bars,means operativelyp efonnecting said type-bars and said key-lee vers, aplurality of groups of intermediate members, a plurality of drivingmembers each adapted to be driven by oneof said type bars and to actuateone ofsaid groups of intermediate members, a plurality, of punches, aplurality of punch-driving memcars each connected to one of said punchesI and adapted 'tojactuate the same, 'punchdriving means adapted to.drive said punchdriving members, a plurality of selecting members eachadapted to be actuated by one of said intermediate membersjand to bringofne or more of'sai'd punch-driving members v ihto operative relationwith "said punch-driv-f ihg means, and means for rendering the membersalternately operative and inoperative, the latter means comprising ashaft adapted to roll along" said intermediate men'ibers and toconstitute thefulcrum of the members'of all said groups of intermediatemembers in turn.

, 7. In means for makingregister bands of the character described, thecombination rality of selecting members, of a plurality of groups ofsubstantially vertical intermediate members each having, a recess, theintermediate members in each group having one end connected to one ofsaid driving members andeach intermediate member being operativelyconnected at the other end to one cf said selecting members, therecesses in the intermediate members of one group being located atvarious elevations, a vertically movable, horizontally non-dispjlaceableshaft having fulcrum edges equal in number to the number of intermediatemembers in agroup andsoarranged that when one edge acts as thefulcrum ofan 1ntermediate memberin one group, thesame edge is opposite a recess ineach of the re maining intermediate members in the same group, and meansfor vertically shifting said shaft.

f 8. In means for: making thefloperating members of said groups ofintermediate bands of automatic composing machines, the J combination ofa plurality of key levers, a

plurality of type-bars, means operatively' connecting said type bars andsaid key-levers, a pluralityof groupsof intermediate members, aplurality of driving members each adapted to be driven by one of saidtype-barsand to actuate one of: saidgroups of intermediate members, aplurality of members and to constitute the fulcrum of the members of allsaid groups of intermediate members in turn, a gear fast on said shaft ashift key, and a toothed rack op eratively connected with the shift keyand meshing with said gear.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses,

HEINRICH DRENELL Witnesses l/VOLDEMAR HAUPT, HENRY HAsPnR.

Copies of this patent may be obtained for five cents each, by addressingthe Gommissioner of Patents,

' Washington, D. C.

